000
AXPZ20 KNHC 020905
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SUN APR 02 2006

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY 
THROUGH 0900 UTC.

...ITCZ...
ITCZ AXIS ALONG 4N77W 6N95W 3N115W 4N125W 2N140W. SCATTERED 
MODERATE TO STRONG WITHIN 90 NM EITHER SIDE OF AXIS FROM 86W TO 
92W. SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM OF AXIS 
FROM 95W TO 100W. WIDELY SCATTERED MODERATE WITHIN 150 NM N OF 
AXIS FROM 103W TO 123W.

...DISCUSSION...
MID/UPPER LEVEL TROUGH IS APPROACHING THE NW PORTION OF THE AREA 
N OF 20N W OF 130W. A 90 KT WIND MAX NEAR THE BASE OF THE TROUGH 
EXTENDS FROM 21N140W TO 24N13W. A BAND OF CIRRUS CLOUDS IS 
WITHIN 180 NM S OF THE JET AXIS. A SURFACE TROUGH EXTEND FROM 
30N125W TO 1016 MB LOW PRES NEAR 26N132W TROUGH CONTINUES TO 
22N133W 19N137W. MID/UPPER LEVEL RIDGE E OF THE TROUGH WITH AXIS 
ALONG 117W N OF 20N. AN AREA OF MODERATE TO STRONG SUBSIDENCE 
WITHIN THE RIDGE FROM 23N-30N BETWEEN 110W-120W. SHORTWAVE 
TROUGH IS MOVING ACROSS NORTHERN MEXICO.

AN UPPER LEVEL ANTICYCLONE IS CENTERED OVER VENEZUELA WITH A 
RIDGE EXTENDING NW ACROSS CENTRAL AMERICA THEN INTO SE MEXICO. 
UPPER LEVEL DIFFLUENCE UNDER THIS RIDGE IS ENHANCING CONVECTION 
ALONG THE ITCZ BETWEEN 86W-92W. OTHERWISE DRY UPPER AIR 
DOMINATES THE DISCUSSION AREA FROM 10N-25N E OF 105W.

IN THE DEEP TROPICS AN UPPER LEVEL TROUGH IS LOCATED S OF 15N 
BETWEEN 115W-130W...SEPARATING TWO UPPER LEVEL RIDGES.


SURFACE 1022 MB HIGH PRES CENTER IS NEAR 28N121W. A SURFACE 
TROUGH IS N OF THE ITCZ FROM 14N126W TO 6N127W. WIDELY SCATTERED 
SHOWERS AND TSTMS AREA ALONG THE TROUGH AXIS.

$$
DGS